Deep Profiling Float Descends to 4000-meters

Press Release
Tuesday, January 01, 2013
Apex Deep off Hawaii:Photo credit Teledyne Webb Research

Teledyne Webb Research's new version of its Autonomous Profiling Explorer (APEX®) makes a record 13,123 ft dive off Hawaii.

APEX floats are based on a buoyancy engine and have been commercially available since founder Doug Webb started Webb Research in 1982.  APEX floats descend to a programmed depth where they become neutrally buoyant and drift.  After some interval, usually five to ten days, the buoyancy engine makes the float positively buoyant and it rises to the surface, where it transmits collected data such as temperature and salinity back to researchers via satellite communications. 

Researchers use the data to build sophisticated climate, ocean, and weather models.  The results are most meaningful when a large population of floats is at sea sampling the oceans. 

By designing and manufacturing energy efficient, reliable, and low cost systems, Teledyne Webb Research has played a leading role in populating the world’s oceans with profiling floats.
 
At the World ARGO conference in Venice, held earlier in October, 2012, Dr. Thomas Altshuler, Vice President and Group General Manager for Teledyne Webb Research, Teledyne Benthos, and Teledyne Gavia told the research community that Teledyne was designing a profiling float that would profile at depths up to 6,000 meters, many times, and at a reasonable cost. 

Unlike the standard APEX, the APEX Deep utilizes a surprising material for its pressure hull; glass.  Glass spheres have been used for many years to provide buoyancy to bottom mounted sensors and instruments.  Teledyne Benthos, sister company to TWR, is a world leader in glass flotation and instrument housing technology with state of the art grinding capabilities.

 “Our investment in glass technology allows the combined Teledyne Webb Research and Teledyne Benthos team to manufacture the APEX Deep at considerably less cost and with greater price stability than would be available using a more traditional material like titanium,” said Altshuler. 

Altshuler continued, “We have spent about a year proving that glass hulls can be cycled over 500 times to depths of 6,000 meters.”  Along with repeating many cycles in the Teledyne pressure tanks, multiple iterations of hull penetrations and fittings have been tested.

The new system design is a direct result of feedback from the community and will give the community a method for conveying ocean sensors into deeper ocean waters. “We learned a lot about how the float will behave in the ocean and some very important logistics and handling considerations,” said Petzrick.  “All of our lessons learned now, mean an easier transition to routine operations for researchers in the future.”




 

Maritime Reporter May 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Sweden’s First AIS Aid to Navigation Deployed

True Heading, manufacturer of Automatic Identification System (AIS) solutions, GPS compasses and app navigation, has supplied an AIS Aid to Navigation (ATON) beacon to the Port of Stockholm, Sweden.

Robotics Ocean Monitoring Alliance Formed in Africa

Blue Ocean Monitoring enters into strategic alliance with Sea Technology Services   Blue Ocean Monitoring (BOM) announced that it has entered a strategic business

DuPont to Introduce Scrubber at Nor-Shipping

Belco Technologies Corporation (BELCO), a DuPont company, will introduce the DuPont Marine Scrubber (formerly the BELCO Marine Scrubber) at shipping and maritime exhibition Nor-Shipping in Oslo.

Marine Science

UNOLS Seeks Fleet Improvement Committee Chair

The University-National Oceanographic Laboratory System (UNOLS) informs it is seeking nominations to fill a Fleet Improvement Committee (FIC) Chair position.   The position,

Second Sea Lion Rescued from California Oil Spill Dies at SeaWorld

A second sea lion rescued from along California's oil-fouled coastline near Santa Barbara has died at SeaWorld San Diego, where veterinarians are still caring for

Severe Flooding Cuts Off Lone Road to Alaska's Oilfield

Alaska's lone road to North Slope oil field operations remains closed for the third time in two months while emergency crews continue to redirect flooding from an adjacent river,

Unmanned Vehicles

Robotics Ocean Monitoring Alliance Formed in Africa

Blue Ocean Monitoring enters into strategic alliance with Sea Technology Services   Blue Ocean Monitoring (BOM) announced that it has entered a strategic business

Statoil Awards Hull Cleaning Contract to GAC

Eco-friendly HullWiper technology to fight fouling and enhance efficiency for oil and gas company fleet    GAC EnvironHull has signed a contract with the international

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Offshore Oil Pod Propulsion Port Authority Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1783 sec (6 req/sec)